Effect of carbon nanotubes on the field-induced nematic switching

被引:49
作者
Basu, Rajratan [1 ]
机构
[1] US Naval Acad, Soft Matter & Nanomat Lab, Dept Phys, Annapolis, MD 21402 USA
关键词
LIQUID-CRYSTALS; ROTATIONAL VISCOSITY; TRANSIENT CURRENT; ALIGNMENT;
D O I
10.1063/1.4846676
中图分类号
O59 [应用物理学];
学科分类号
摘要
A small quantity of carbon nanotubes (CNT) was doped in a nematic liquid crystal (LC), and the LC + CNT hybrid was found to exhibit a faster field-induced nematic switching compared to that of the pure LC. The field-induced switching time was probed by means of the electro-optic response of the samples. The hybrid system also revealed a reduced rotational viscosity and an enhanced dielectric anisotropy. The results suggest that the hybrid system undergoes a faster field-induced switching, as the CNTs favorably alter the rotational viscosity and the dielectric anisotropy of the nematic matrix. (C) 2013 AIP Publishing LLC.
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页数:4
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共 23 条
[1]   Cohesive band structure of carbon nanotubes for applications in quantum transport [J].
Arora, Vijay K. ;
Bhattacharyya, Arkaprava .
NANOSCALE, 2013, 5 (22) :10927-10935
[2]   Digital signal propagation delay in a nano-circuit containing reactive and resistive elements [J].
Arora, Vijay K. ;
Chek, Desmond C. Y. ;
Hashim, Abdul Manaf .
SOLID-STATE ELECTRONICS, 2011, 61 (01) :87-92
[3]   Electrical-field effect on carbon nanotubes in a twisted nematic liquid crystal cell [J].
Baik, IS ;
Jeon, SY ;
Lee, SH ;
Park, KA ;
Jeong, SH ;
An, KH ;
Lee, YH .
APPLIED PHYSICS LETTERS, 2005, 87 (26) :1-3
[4]   Carbon nanotube-induced macroscopic helical twist in an achiral nematic liquid crystal [J].
Basu, Rajratan ;
Chen, Chia-Ling ;
Rosenblatt, Charles .
JOURNAL OF APPLIED PHYSICS, 2011, 109 (08)
[5]   Carbon nanotube-induced chirality in an achiral liquid crystal [J].
Basu, Rajratan ;
Boccuzzi, Krysta A. ;
Ferjani, Sameh ;
Rosenblatt, Charles .
APPLIED PHYSICS LETTERS, 2010, 97 (12)
[6]   Dielectric hysteresis, relaxation dynamics, and nonvolatile memory effect in carbon nanotube dispersed liquid crystal [J].
Basu, Rajratan ;
Iannacchione, Germano S. .
JOURNAL OF APPLIED PHYSICS, 2009, 106 (12)
[7]   Nematic anchoring on carbon nanotubes [J].
Basu, Rajratan ;
Iannacchione, Germano S. .
APPLIED PHYSICS LETTERS, 2009, 95 (17)
[8]   Evidence for directed self-assembly of quantum dots in a nematic liquid crystal [J].
Basu, Rajratan ;
Iannacchione, Germano S. .
PHYSICAL REVIEW E, 2009, 80 (01)
[9]   Carbon nanotube dispersed liquid crystal: A nano electromechanical system [J].
Basu, Rajratan ;
Iannacchione, Germano S. .
APPLIED PHYSICS LETTERS, 2008, 93 (18)
[10]   Dielectric response of multiwalled carbon nanotubes as a function of applied ac-electric fields [J].
Basu, Rajratan ;
Iannacchione, Germano S. .
JOURNAL OF APPLIED PHYSICS, 2008, 104 (11)